A few months ago, I was stuck in Colombo traffic, watching my fuel gauge drop, and I did some rough math in my head. The number I landed on genuinely bothered me. So I did what any engineer with too much free time would do — I turned it into a hobby project.
That project became www.fuelpass.lk — a completely free platform I built to help Sri Lankan drivers figure out exactly how much fuel (and money) they're wasting, and what they can actually do about it.
I want to share why I built it, what's inside, and why I think it matters.
It Started With a Number That Didn't Sit Right
With petrol at nearly Rs400 a litre, even a daily 30 km commute adds up to a painful monthly bill. But what really nagged at me wasn't the price — it was the waste. When I dug into the automotive research, I kept finding the same thing: the average driver wastes up to 40% of their fuel spend through habits they don't even know they have.
Forty percent. That's not a rounding error. That's thousands of rupees every month going up in exhaust fumes because nobody ever showed people the data in a way that actually clicks.
I looked for a Sri Lankan resource that did this well. Something local, something practical, something that wasn't just "drive slower" repeated ten different ways. I couldn't find one. So I built one.
Where Does All That Fuel Actually Go?
This is the part that surprised even me when I was putting the research together. The waste isn't coming from one big thing — it's death by five cuts.
Hard acceleration is the worst offender. Every time you stamp the pedal from a traffic light, your engine is basically chugging fuel. Across a week of Colombo driving, that adds up alarmingly fast.
But the finding I keep coming back to is tyre pressure. Running even slightly under-inflated tyres costs you up to 10% of your fuel economy — silently, every single trip. It takes two minutes to check. It costs nothing to fix. And most people never think about it. That's the kind of gap I built www.fuelpass.lk to close.
What I Actually Built (It's More Than Tips)
I didn't want to make a blog. Sri Lanka doesn't need another "10 fuel saving tips" article. What we needed were tools — interactive, personalised, built for how we actually drive here.
So that's what www.fuelpass.lk has:
⚡ Speed vs. Fuel Simulator — You drag a slider and watch your weekly fuel cost change in real time. At 60 km/h, a standard car burns about 5.5L/100km. Push to 120, and it nearly doubles. Seeing it happen live is completely different from reading about it.
🧮 Weekly Fuel Calculator — Plug in your vehicle type, your daily kilometres, how you drive, and the current fuel price. It gives you your actual weekly litres, your rupee cost, your monthly projection. Your numbers, not some generic estimate.
🚗 My Car Fuel Profile — This one I'm especially proud of. Pick your car's make, model, year. Factor in your route type, AC usage, passenger load. What you get back is a fuel cost profile calibrated to Sri Lankan conditions — Colombo traffic, our road quality, the way people actually drive here. Not a number from a European test lab.
🏁 3D Driving Style Lab — A side-by-side simulation of two identical cars, one driven smoothly and one driven aggressively. You watch the fuel tanks drain in real time.
That last one is probably the feature I'm most excited about. I've read the "aggressive driving wastes 40% more fuel" statistic a hundred times. But watching it happen — seeing one tank empty while the other barely moves — that changes something in your head. It's the difference between knowing and feeling.
I'm currently working on more simulations: a 3D exploded car diagram showing how worn parts hurt fuel economy, and a Colombo traffic simulator that models fuel waste across different routes and peak hours.
I Built It in Three Languages
This was important to me. www.fuelpass.lk works in English, Sinhala, and Tamil.
Fuel savings shouldn't only be accessible to English-speaking drivers in Colombo. A three-wheeler driver in Kandy or a delivery rider in Jaffna deserves the same information and tools. Building in all three languages was more work, but it was the right thing to do.
Why It's Free (And Will Stay Free)
People keep asking me this, so I'll just say it directly: there's no subscription, no ads, no data harvesting, no catch. I built this as a hobby project because I thought it was worth building. I have a day job. This is the side project.
The whole point was to make something useful and put it out there. The moment I stick a paywall on it, it stops reaching the people who need it most.
The Part Where I Ask for Your Help
I've spent months building www.fuelpass.lk and I genuinely believe it can save Sri Lankan drivers real money every month. But a tool is only useful if people know it exists.
So if you think this is worth sharing — share it. Send it to a friend, a family member, your office WhatsApp group. Drop the link in a comment. If even a few people check their tyre pressure this week because of this post, that's a win.
The core idea is simple: you're not just burning fuel. You're burning money. And now there's a free tool to show you exactly how much.
👉 www.fuelpass.lk — Free. Sinhala. Tamil. English. No signup needed.
(Quick note: this is my independent project, not a government site. For your official fuel quota QR code, that's fuelpass.gov.lk — completely different thing.)
Genuine question for everyone here: how much do you spend on fuel each month? Try the calculator at www.fuelpass.lk and let me know if the number surprises you. I bet it will.
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